Brown Artifical Corundum Grain belongs to the group of electro-corundum.

It is also be called brown aluminum oxide, brown fused alumina, or brown fused aluminum oxide. It is produced by the smelting of calcined bauxite in an electric arc furnace at temperatures more than 2000°C. The main raw material is bauxite in the smelting process, and its melting point increase with the the Al2O3 content, which range from 1700-1900 degree Celsius.